ACTIVATE AN EA

 
I have several activations left for an EA that I am using. In the past, I would go to "purchases" and download it from there as there was an option to do that but after formating my hard drive and re-downloading MQL5 and MT4, the "download activation" is not there anymore.
 

I am not sure exactly but you may lose the activations by formatting HDD and install new (fresh) copy of OS for example.
Anyway, you can write to the service desk for the advice.